All Parts
At HK PARTS, we bring you a wide array of high-quality H&K accessories and components for your favorite firearms. Whether you're upgrading your H&K pistol or rifle, or even looking for parts kits, we've got you covered. Discover a range of top-rated components for popular models like VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, we have it all. Enhance your firearm's performance and functionality with our premium components.
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H&K HK P2000SK Low Profile Floor Plate - Black
H&K Heckler & Koch
$26.95New HK German P2000 SK Magazine Flat Floor plate Low profile style without the finger rest and best for concealed carry or a low profile. This is the perfect upgrade for those who want a slim profile and less obtrusive effect when carrying...HKP-01676$26.95 -
Universal Cleaning Kit - Used
H&K Heckler & Koch
$4.95Original German Army Issue HK91/G3/PTR Cleaning Kit - Surplus Each cleaning kit kit comes complete with brass brush, oil brush, oil tube, hand cleaning brush, and pull chain. Compatible With: G3, 91, PTR, C308, CETME 93, 33, 53 MP5, MP5SD, 94 MP5K,...HKP-15612$4.95 -
H&K HK P30 Series Trigger V4 Medium Weight Return Spring
H&K Heckler & Koch
$14.95Trigger Return Spring For V4.1 or Combat Defensive Action (CDA) Trigger for the HK P30, P30L pistols. This spring is also known as the medium weight trigger return spring. Found on all (European CDA) variant 4.1's. Compatible With: P30 P30L P30S All LEM...HKP-16745$14.95 -
HKP HK91, G3, PTR Dual Magazine Clamp
HKP HK Parts
$28.95HK91, G3, PTR - .308/762 Dual Mag Clamp/Coupler The HK91, G3 magazine grip or dual magazine clamp. Holds two magazines together for ease of use and easy access to 2 magazines. Half the weight of the factory mag clamp. HK Parts highly recommends...HKP-19634$28.95 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Barrel Roll Pin
H&K Heckler & Koch
$11.94HK German USC, UMP Barrel Pin - German HK recommends replacing the barrel pin when the barrel is removed with a new barrel pin. This is a great spare part to have on hand. The factory-correct barrel pin for all HK UMP & USC models. A great upgrade...HKP-00603$11.94 -
HK UMP/USC (.40 S&W/.45 ACP/9mm) Recoil Buffer
$11.95HK USC & UMP Recoil Buffer Replaceable spare lower housing or buffer for buffer housings. This is a high wear & replacement item and a must have for spare parts. Compatible With: HK USC .45 HK UMP modelsHKP-18746$11.95 -
HKP HK G36/SL8 (5.56/.223) Bottom Rail - 6 inch
HKP HK Parts
$27.95G36 & HK SL8 6" Bottom Rail Fits the SL8 and G36 full-size forearms. This item is just over 6" in overall length and is made from aircraft-grade aluminum. Comes with the screws needed for installation. From the center of the screw holes, there are...HKP-00285$27.95 -
HKP MP5, HK94 & SP5K Rear Sight Drum & Base
HKP HK Parts
$53.47HKP MP5, HK94 & SP5K Rear Sight Drum & Base Finally an affordable factory correct rear sight that does not break the bank or lead to settling for inferior 3rd world produced pot metal cast MP5 rear sights. We offer the only set that includes an...HKP-17512$53.47 -
H&K German Recoil Guide Rod Rivet
H&K Heckler & Koch
$4.95H&K German Recoil Guide Rod Rivet This rivet holds the stop pin and recoil spring captive and in place to the recoil rod itself. The price is per rivet. New old stock HK German rivet. Compatible With: G3, 91, 33, 93, & 53 MP5, 94 MP5K SP89 HK21...HKP-01026$4.95 -
HKP +4 HK 45C, USPC .45 ACP Magazine Extension - Black
HKP HK Parts
$49.95HKP +4 HK 45C, USPC .45 ACP Magazine Extension - Black HK Parts magazine extension +4 adds 4 additional rounds to the HK45C, 8 round magazine. Each unit can then be fully assembled into a 12 round HK45C magazine. Ideal for competitive shooters, concealed...HKP-18654$49.95 -
HKP HK SL8 & HK G36 Top Rail Screw
HKP HK Parts
$5.95HK SL8 & G36 Top Rail Screw This rail screw is the standard length rail screw used for all SL8 and G36 top rails. With the exception of the dual and single option models. A must have part and an easy part to loose or strip. Grab yours to have...HKP-20330$5.95 -
HKP Picatinny Rail For HK Receivers - 17 Slot
HKP HK Parts
$69.95HKP Picatinny Rail For HK Receivers - 17 Slot Mil-Spec all steel Picatinny rail in the white. Relief cut for HK receivers and made for mounting scopes and optics to HK builds. This unit easily welds to the top of your HK receiver. Compatible With: HK...HKP-01446$69.95 -
H&K 10 Round HK USP .45 ACP Extended Magazine w/ Pinky Rest - Black
H&K Heckler & Koch
$49.00H&K 10 Round HK USP .45 ACP Extended Magazine w/ Pinky Rest - Black Perfect for the states that require 10-round magazines or for those that compete & require a 10-round-only magazine. Compatible With: HK USP .45 HK USP Tactical .45 HK USP...HKP-00315$49.00 -
HKP HK21 T-Rail Set - 7.62x51/.308
HKP HK Parts
$119.95HKP HK 21 (7.62x51/.308) Factory Style T-Rail Set HKP HK21 US made rails for all HK21 and FMP21 builds. Our steel T-rails incorporate an updated radius to address a weak link in previous iterations. Compatible With: HK21 FMP21HKP-21457$119.95 -
3 Point Factory Sling HK German - Green
$99.953 Point Factory Sling HK German - Green New HK German manufactured. This sling can be used as a 2-point or 3-point sling on your HK firearm. This sling is the factory HK-issued sling that came on the 90 series of firearms. Compatible...HKP-00182$99.95 -
Out Of Stock
B&T Quick Detach Short Style Vertical Grip - Black
B&T Brugger & Thomet
$74.95B&T Quick Detach Short Style Vertical Grip - Black Swiss made B&T quick detach short vertical for-end grip with quick release throw lever for picatinny. Made of black polymer and includes a water tight storage compartment in the bottom of the...HKP-17679$74.95 -
HKP HK MP5 .22 Sling Clip Kit - Black
HKP HK Parts
$24.95HKP HK MP5 .22 Sling Clip Kit - Black Each unit will fit all models of the MP5 .22 that have the 3 mounting holes on the left side of the magwell. This item installs in a few mins and comes complete with all you need for the install. With the addition of...HKP-15706$24.95 -
HKP G36C Parts Kit
HKP HK Parts
$1,199.95HKP G36C Parts Kit HK Parts brings you a complete G36 parts kit, loaded out with everything you need to complete a stripped receiver. Our parts kits will have the highest quality parts for ultimate reliability. As an added bonus, each of our parts...HKP-21492$1,199.95 -
H&K MP5, HK94, MP5K, SP89 & SP5K Firing Pin
H&K Heckler & Koch
$39.95H&K MP5, HK94, MP5K, SP89 & SP5K Firing Pin - German Compatible With: MP5 HK94 MP5K SP89 SP5KHKP-00061$39.95 -
On Sale
HKP HK VP9 Gen 1 V2 Rail Mount Compensator - Black
HKP HK Parts
Now: $99.95Was: $169.95HKP HK VP9 Gen 1 V2 Rail Mount Compensator - Black Specifications: Length: 4 1/4 inches Height: 2 1/2 inches Weight: 5 oz. Torque: 3nM / 26 inch-lbs Crafted from aircraft-grade billet aluminum and finished in durable Cerakote. Not to be used with HK VP9...HKP-19370Now: $99.95Was: $169.95 -
JMAC Customs Metric Face Mount Shims
JMAC Customs
$9.95JMac Customs Metric Face Mount Shims Custom shims for JMac muzzle devices. This kit includes varying thickness shims to "time" your muzzle device to your desired orientation. These shims are specifically made for JMac 14F, 15F, 24F and 26F muzzle devices...HKP-21446$9.95 -
LSC MP5 9mm Receiver Flat
LSC
$199.95MP5 Receiver Flat - LSC LSC HK MP5 receiver flat is the most in spec flat that has ever been available. The best option for your HK German parts kit build. This flat is considered by many to be most sought after HK flat available on the market and...HKP-20555$199.95 -
H&K USC (.45 ACP) 10 Round Magazine
H&K Heckler & Koch
$68.95HK German Factory 10 Round USC .45 Magazine This is the only magazine that HK offers for HK USC unless you want to upgrade to the USC-UMP style of conversions. Compatible with all HK USC Carbines.HKP-00811$68.95 -
HKP HK UMP .45 & UMP .40 Dual Magazine Clamp
$49.95UMP .45/.40 Dual Magazine Clamp The UMP mag clamp fits all .45 and .40 UMP magazines. Holds two magazines together for ease of use and easy access to 2 magazines. Billet machined and hard coat anodized. Features: Made in the USA Dual-Magazine...HKP-19539-M$49.95 -
HKP Flat Bending Billeted Jig Set For All HK Style Flats
HKP HK Parts
$449.95HKP Flat Bending Billeted Jig Set For All HK Style Flats NEW LATEST 4th GENERATION VERSION AND DESIGN. THE FINEST JIG SET AVAILABLE! Billeted universal flat bending jig for all HK receiver flats including our new PTR .308 flats and the...HKP-19583$449.95 -
HKP Rear Sights Locking Washer
HKP HK Parts
$2.95HKP Rear Sights Locking Washer HK German rear sights toothed locking washer used in perfect working order.HKP-00869$2.95 -
X-Grip HK P2000 to P30/VP9 Magazine Adapter
X-Grip
$15.95X-Grip HK P2000 to P30/VP9 Magazine Adapter The XGRIP P2000 is a new patent pending OEM factory accessory for the HK P2000 that enhances the versatility, look, and feel of the gun. Features: Versatility: Size of a Compact, capacity of a Full-Size The...HKP-16670$15.95 -
H&K +2 Roller For Bolt Head 8.02mm - Over-sized
H&K Heckler & Koch
$24.95H&K +2 Roller For Bolt Head 8.02mm - Over-sized New HK standard (8.02 mm) locking roller. The proper roller size is essential for a proper bolt gap. New HK German, not surplus or used out-of-spec part. Please Note: The price listed is per roller...HKP-00507$24.95 -
H&K UMP (.40 S&W/.45 ACP/9mm) Safe/Semi Lower - 2 Position
HKP HK Parts
$495.99New HK Parts -UMP Safe, Semi FBI (0,1) Lower Each lower comes complete with 2 position settings (S, F) and all the internals. This item is ideal for the USC to UMP conversion or to keep as a spare. Compatible With: UMP .45 UMP .40 UMP 9mm USC...HKP-00590$495.99 -
HKP 13 Round HK 45/45 Tactical .45 ACP Magazine - Black
HKP HK Parts
$104.95HKP 13 Round HK 45/45 Tactical .45 ACP Magazine - Black HK45 & HK45 Tactical +3 magazine extension coupled with a new HK German 10 round HK45 magazine. Each unit is then fully assembled as a 13 round HK45, HK45 Tactical magazine. Ideal for concealed...HKP-18387$104.95 -
HKP Spare Buffer For Folding Stocks & End Caps
HKP HK Parts
$9.95HKP Spare Buffer For Folding Stocks & End Caps New US manufactured flat style "H"buffer to replace the factory HK buffer on MP5K folding stocks and end caps. As well as a spare or replacement buffer for the MP5 & MP5K folding B&T stocks. Made...HKP-17886$9.95 -
HKP HK 91/G3 (7.62x51/.308) Weldment Set Complete
HKP HK Parts
$79.95HK G3, HK91, PTR Weldment Set Complete New US manufactured billeted from solid ordnance grade bar stock. Perfect for roller lock or other custom builds. Each weldment set unit is precisely machined. Includes: Rear sight base Semi auto shelf 2 X rear...HKP-17509$79.95 -
Raddlock MP5 & MP5K Magazine Block - 10 Round
Raddlock
$9.95Magazine Block Plug To Reduce HK MP5 30 Round Magazine To 10 rounds MP5 10/30 mag block. This is designed to be used on the HK MP5 30 round, curved, steel magazine. Very easy to install & use. Compatible With: MP5 & MP5K 30 round, curved...HKP-02434$9.95 -
Out Of Stock
H&K HK MR556/MR762/416/417 Battle Grip w/ Storage - RAL 8K
H&K Heckler & Koch
$69.95H&K 416/417 & MR556/762 Battle Grip With Storage Compartment - RAL 8000 New HK German factory battle grip with storage compartment access located in the bottom of the grip. Superior fit & feel to any other grip on the market. This is a great...HKP-18584$69.95 -
H&K HK MR556/MR762/416/417 Front Sight
H&K Heckler & Koch
$149.95HK MR556, HK416 & MR762 & HK 417 Fixed Front Sight Assembly German HK front fixed sight for use with a rear diopter style sight. It can also be used on some other Ar-15/M-16 applications. Complete with all mounting hardware for a Picatinny rail...HKP-00025$149.95 -
H&K HK VP9, HK VP40 Complete Recoil Spring Assembly
H&K Heckler & Koch
$89.95H&K HK VP9, HK VP40 Complete Recoil Spring Assembly Newer style recoil spring offering that is now standard in all VP9 & VP40 models. This model has a slightly stiffer spring rate than the earlier 1st gen VP9 recoil spring models...HKP-17613$89.95 -
H&K 91/G3 (7.62x51/.308) Firing Pin Spring
H&K Heckler & Koch
$9.95HK German HK G3, HK91, & PTR Firing Pin Spring This is a common repair and replacement item and is great for spares as this is a common breakage part.HKP-00498$9.95 -
JMAC Customs HK MP5, HK SP5, HK 33 1913 Rail Stock, Brace Adapter - Black
JMAC Customs
$94.95Picatinny Stock/Brace Adapter - RSA-MP5 - HK SP5 Finally a way to mount 1913 stocks/braces to your favorite full-size MP5 clone! It has a Picatinny rail machined on the rear which allows you to install 1913 style stocks/braces. Cheek wield is...HKP-19305$94.95 -
SB Tactical TF1913 Side Folding Pistol Stabilizing Brace - Picatinny
SB Tactical
$159.99SB Tactical TF1913 Side Folding Pistol Stabilizing Brace - Picatinny Features: Complete assembly, ready-to-install Advanced steel hinge design locks in both folded and extended positions Pull-through design offering quick deployment Rigid polymer...HKP-19776$159.99 -
H&K HK 9mm Pistol Field Cleaning Kit
H&K Heckler & Koch
$54.95H&K HK 9mm Pistol Field Cleaning Kit This is a genuine HK factory cleaning kit and is recommended by HK for all HK pistol owners. Compatible With: 9mm .357 SIG Includes: Saf-T-Clad Cleaning Rod Accessory Adapter Section #8-32 Patch...HKP-01244$54.95